Perhaps you should try some spelling variations:
"supply chains international efforts." » "supply chains international airports.", "supply chains international energy.", "supply chains international airport.", "supply chaos international efforts.", "supply changing international efforts.", "supply china's international efforts.", "supply chain international efforts."
"supply service inflation theory." » "supply service information theory.", "supply service innovation theory.", "supply price inflation theory.", "supply service incubation theory.", "supply services inflation theory."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply service inflation theory.") OR ("supply chains international efforts."))~.
• Removing quotes may allow a broader search: (( supply service inflation theory. ) or ( supply chains international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply service inflation theory.") or ("supply chains international efforts."))*.